Paste shoe-filler and process of making same.



TED STATES PATENT OFFICE.

ANDREW THOMA, OF CAMBRIDGE, MASSACHUSETTS, ASSIGNOR TO NORTH CHEMICALCOMPANY, OF NEW YORK, N. Y.. A. CORPORATION OF MAINE.

PASTE SHOE-FILLER AND PROCESS OF MAKING SAME.

No Drawing.

tom cavity of welt shoes, and is'an' improve- 3 ment on my previousfillers, particularly the one disclosed in my prior application SerialN0. 32,083, filed May 11, 1908, which is now Patent No. 1,032,312, datedJuly 9, 191:2 (of which this application is in part a continuation), andin the process of. making it, the object thereof being to renderpracticable the use of binder ingredients of a ,pasty nature which wouldordinarily become dry and harsh, to prevent the tendency thereof tomakeshoes squeak when .placed between the soles, to render such fillermore or less impervious to water, and to reinforce the same so as torender it more tough and without the usual objectionable qualities.

1 Common flour pastes or solutions of flour paste, starch paste, potatopaste, dextrin, vegetable gums, and other similar mucilaginouspreparations, and silicates of soda or potash, (particularly when madein a bulky, fluffy condition, and intermixed with other bodygivingcomponent such as comminuted cork, leather dust, and the like) areadvantageous for fillers, particularly for the cheaper grades of weltshoes, provided the tendency thereof to keep on drying until fragile andliable to cra ck and crumble when the shoe is bent and to causesqueaking there of, ,can be eliminated. Particularly is thistheca'sewit-h the German preparation arabol.

a-pparatin, and pastes made from starch or flour treated so as to becomevery bulky (swelled) and jellified in a mushy, non-fiowing form, wherethe flour is boiled and treat-- ed with alum, or chlorid salts to ahighly ellified condition, or where potato starch, for example, or cornstarch or any of the well known starches are treated to a solution ofcalcium. etc., (for treating thesta rehlgranules and bringing them ,tsai'd highly jelli fied, bulky condition)., "car'e being preferably bothSpecif cation of Letters Patent.

Application filed July 8, 1912.

THOMA, a

Patented Dec. 15,1914. Serial No. 708,265.

taken to render the j ellified mass neutral or suitable to the leatherit comes in contact with. as a filler.

1 have discovered that by providing a permanently soft, sticky compoundand bringing it and also the dry-setting compound highly fluid condition(by chemical action or by heat) and then thoroughly beating themtogether, a close combination or union of the two is effected so as toform a starchy jelly-like mixture which will set to a nonshii'tablecondition for the shoe bottom and (above alluded to) to substantiallythe same yet will not set to a hard, dry, or harsh and I brittlecondition but will remain in substantially the ideal condition requiredfor a shoebottom filler.

Preferably my invention is carried out in a cold state for most of theingredients mentioned. The non-hardening, sticky compound may be addedin a heated fluid state. i I have also found it advantageous to make thepaste. or paste-like body material separately in large receptacles andallow it to set to a jelly. An illustrative example of the manner ofcarrying out my invention:

To say five pounds in weight of this jelly, I add one to one and a halfpounds of soft wax-tailings 2'. 61, the resinous residuum of petroleumthe sbft. sticky varieties being "preferred, which when slightly heatedcan be readily beaten or whipped into a close of a proper mixingmachine. For commercial purposes I find that, although apparcombinationwith the starch jelly by the use ently diametrically opposed to oneanother,

composition. which can be readily admixed 1H with ground cork. evenwhile cold if desired, and can also readilv be spread within a shoebottom "cavity in usual manner. V pasty condition of both componentswhen holds the wax tailings in suspensiom'but keeps it permanently so.By haying them in this thick pasty condition, and

The thick f thoroughly admixed as stated whereby the alkali, chlorid ofmagnesium, orchlorid off-"whole becomes a homogenous je1ly,.not onlythoroughly whipping them together (the ingly under'such conditions Iapply either tailings being hot and fluid), I am enabled to the filleror to the tool, a solution of soap starch paste has a suflicientinfluence upon pastes.

I pastymass and to impart the characteristic color of the tailings tothe entire mixwith the soft sticky compoundfi FI" have.

dyes) the wax tailings are equally influenced I toward a more completefluxing wlth the globules-of .the more sticky component i controls theirotherwise objectionable inde- 45 nently flexible, quality essential andof importance 1n good mg these results (and in an improved form) shoefiller material. If notapplied hot .in to one of my pastes is by taking,say six 1;. cause the latter to drag on the cork becausb\ to incorporatethe naturally repellent eleor other slimy liquid for giving a temporaryments thoroughly together, and then when sleek surface. the mass .COOlS,the entire tailings separate dries or sets, the firm-setting agent orpaste into minute globules or a finely subdivided asserting itsstiffening influence over the condition, these minute particles of theWax low-melting sticky component to prevent Then, when laid, theffillertailings beingheld permanently in suspenthe latter from responding toheat under sion separated from each other and prenormal conditions ofuse, and the other vented from sticking to one another .orstickycomponent rendering the firm-setting coalescing by the slimy envelopingpaste. or stiffening agent less brittle and more Theslimy, mucilaginouspaste and the resin- 'water-repellent, due to its sweating through ouspaste are beaten together to an emulsithe paste or permeating theenveloping jelfied or flufly condition so that the resinous lifled mass,and therefore asserting itself as wax tailings has all its globulesbroken up .or finely separated within the bulky, jelliinfluence.

fied starch which latter envelops and holds The above-describes thepreferred combithem apart. This makes a practical worknation ofmaterials, but I large deviations able filler paste. Mixed with a coarsetherefrom are within the spirit and scope of granular body-material'theminute sepamy'invention. For instance, pastes or jelration of the waxtailings'within the paste lies made with water from any vegetable is notnoticeable. In order to elimihate this source and of proper consistency,when adseparation of the globulesof the wax tailings mixed with a soft,low-melting compound, altogether, I have found that the action of, asabove, will carry out the invention. Silianilin dyes dissolved in benzoland alizarin Gates of soda 'or'potash in water or silicic oil andadmixed with the fluffy swelled acid can be used to replacethe vegetableJ ellified compositions having. an the waxftailings to merge them intothe animal origin, such as glue, casein, gelatin,

etc., are capable of bcingbeaten'or mixed ture. I have also found thatwith the ad- .found that the ordinary pastes" when dition of ammoniacalsalts (but no a-nilin brought to a fluffy, jellified condition, holdpaste but of a lighter color. .t-heir unaltered or natural condition.When;

hen the filler material has dried to its ever the latter is to be unitedmore closely. ultimate normal condition 1n the shoe botto the paste andtheir identity concealed tom, it will be found to be nelther hard onmore or less, I use the emulsifying eflect of, account of the otherwisehard-sett ng nature the alkallon the rosin paste ornaphthalate M) I iotherwise low-melting soft sticky condition tion, or when the moresticky component is of'the starch,-nor too soft on account of the ofrosin which brings about afsoa'py. c diof the wax tailings." In. otherwords, the soft wax tailings, I use ammonia or its salts union of these"greatly varying ingredients inthe paste solution to attack the waxtailings. In this connectionone of the advanpendent nature- I have foundthat this tages of the flufly (beaten) feature is that it strange andunexpected union of these two prevents precipitation. In fact, this isthe widely varying components produces a intention 'or one'objectin allformsof my binding .medium of jelly-like bin'dlng'subinvention. Thecombining influence of the stance whichsets into a semi-hard, nicelyammonia imparts to the paste somewhat of yielding mass, which is nolonger lowvmeltthe coloring of the tailings, thereby remoying on the onehand nor dry andbrittle on mg the cheap unsubstantial appearance of insuspension or floating the fminute the other hand, but is tenacious,perma-. the paste, giving the whole abetter commerand water-repellent,acial appearance. Another means of impartthe shoe bottom cavity, thefailings in the parts by weight of corn starch mixed in pasty mass willsoon cling in sufficient twenty-one parts by weight of water, and amountto the spreading knife or spatula adding two and one-eighths parts byweight of caustic soda (twaddling 62) in nineteen parts by Weight ofwater and thoroughly there is usually such a large amount of drystirring them to a flufl'y state.

cork admixed in the filler that it absorbs or of. the moisture (orsleeking element) as to paste, When this gets smooth by stirring, Ileave the tailings more active or assertive add one ounce of oil-solubleyellow anilin for clinging to the working tool. Accorddye, d1ssolved inalizarin oil and benzol and 0 I The stock vwithdraws from. the pastybmder so much will become gelatmizechand form a thick sticky resinouscomponent and resinglnous 40 1 or t bl il or h i l t a pastewhippecl'together to a flufiy condition 'be readily understood from myprevious patents and applications), such as resin mg a J l d pasty masshaving a sticky stir thoroughly into the above paste comuntil acompletely emulsified fluffy mass is ound. To neutralize the alkalinenature of obtained. the latter I add one-eighth of one part of 2. Theprocess. which consists inadding carbolic acid in one art of water (topreto a sticky tacky neat-sensitive water-repelvent souring,) and tireeparts of sulfuric lent component, a water solubleadhesive, acid(strength 24 twaddle) to two parts of and beating or whipping themixture until water. and mix thoroughly. Then, when all a fiuffy,permanently emulsified and perare uniformly mixed, twelve ounces ofmanently plastic mass is obtained. sticky, soft wax tailings (in a warmfluid 3. The process, which consists in mixing pasty condition) arestirred rapidly into the with a permanently sticky wa-terprbof compaste.The result is that the tailings are ponent suitable for a shoe filler, awater distaken up wholly inan unrecognizable condisolved, muscilaginousbody, he constituents tion. The tailings overpower the dyed of themixture being reduced to a condition paste and give the Whole a sort ofthick of fluidity, and then whipping, the mass t d lor, until all theingredients are thoroughly. in-

The combination is perfect, so far as virtermixed to a fluffy condition,and finally tually concealing the tailings, but by thinadding to thiscomposition a comminuted ning the paste with cold water the tailingsfilling-body material in quantity sufficient can be promptly separatedas such. For to g ve the final product at ord'inarytemperfillerpurposes, however, the union is pracatures a stiff dough-likeconsistency' tically perfect, and when mixed with the 4,,A compositionfor shoe filler, consistgranular cork makes an excellent filler. mg of ajellified pasty mass holding in sus- The low-melting sticky compound menpension and in a finely disseminated and tioned containing'the resinousresiduum of subdivided condition a sticky gummy competroleum or waxtailings can be replaced ponent non-responsive to the action of by otherwater-repellent ingredients, (as will Water; v

' 5. A composition for shoe filler, comprisnaphthalates, treated resins,combinations resinous component beaten thereinto in an of resins andtars, or tars alone (taking care emulsified cond t on. j I to choosethose of properi consistency \and A C mposition for shoe fi11er,consisquality). In the claims, under the terms g f Wax tillllngs, n aque us md-i paste whipped together to a fiufly ous paste ,.I intend to includeall these 1- i W1 resins, such as the vegetable resins men- A pq n for$1106 filler, I1 iS tioned above and in the patents alluded to, g g dall aqueous c yand the mineral resins, which latter include PF 1ppedtogether to a fluffy condithe resinous residuum of petroleum, 'comt10l1-monly known as wax tailings ,So resins 8. r k'composition for shoefiller, consistsubjected to the softening influence of ming of Waxlllngs, and an aqueous starchy pasty consistency a b l d; I thoroughlyintermixed with comminute fact, thickened, jellified sticky bodies ofr-body mater al. x vegetable oils can :be used in a'like manner.- A Q PH 1 Shoe filler, consist- Soluble starches, such as the dextrins, are gof 11- m ilaginous paste and a resinous 116 capable of being-used, butowing to' their P QU ge her to a fluffy mass until solubility and cost(when in a, thi k the resinous paste is in an emulsified-consyrupycondition),the less soluble starchy dltlOIl 1n e a sea preparationsmentioned are far preferable, 10. A composltion for shoe filler,consistespecially when their flufly nature mentioned is considered,which adds to their le mucilaginous paste, and chemical a so moreeconomical and advantageous use for ns f r fillXing the Water-repellentcomthepurpose f fill Th j llifi d b di s ponent lnto a m0re intimateunion with the above mentioned, for example of starch or q ll g o sPaste beaten t a flour, can be treated to a softening admixr ughly mixedcondition.

t f l i 1 1 19 11 f t a i- 11. A composition for shoe filler,consistfied resins, or combinations of oils, fats, mg of awater-repellent component, a vegeand resins, to make the paste lessbrittle\table mucilaginous paste, chemical means wh t, for fluxing thewater-repellent component Having described my invention, what I nto amore intimate union with the aqueous claim as new and desire to secureby Letters" 'mucilaginous paste beaten to a thoroughly Patent is: mixedcondition, and comminuted filler-. 1. The process, which consists inheating body material intermixed with the foregowax tailings to a fluidcondition, adding an ing mass into a stiif doughlike body. aqueousstarch paste, and then whipping 12. A shoe filling composition,consisting ing of a water-repellent component, a vege- 115- of apermanently sticky water-repellent component, a Water dissolvedmucilaginous component having a-separating and sleeking influencethereon, Whipped together to a permanently emulsified condition, and asuitable .iiller-bo-dy material in quantity sufficient to make atordinary temperatures a stilt doughlike mass.

13. A shoe filling composition, consisting of apermanently stickyWater-repellent comp,onent,,-a water dissolved mucilaginous componenthaving a separating and sleeking influence thereon, whipped together toa permanently emulsified condition," and a suitable filler-bodymaterialin quantity sufficient to make at ordinary temperatures a stifidonghlike mass and capable of setting to a permanently non-shiftablecondition in a shoe bottom cavity.

14:. A composition for shoe filler, cognprising a vegetable paste, a jellified mineral component, and a sticky gummy component, the latterbeing held in finely subdivided suspension in the other two, and theWhole thoroughly beaten together to a fluffy conand the 'Wholethoroughly beaten together to a flufi'y condition. 7,

16. A composition. for shoe filler, consisting of an apparatin starchsolution, an oil solution, analin dissolved in benzol and alizai'in oil,mixed together, and a sticky component beaten With the foregoing into afluffy mass until said gummy component is amalgamated therein andimparts to the mass its characteristic color. y

In testimony whereof, I have signed my 7 name to this specification, inthe presence of two subscribing witnesses. i

' F ANDREXV THOMA. Witnesses GEO. H. MAXWELL, JAMEs R. HODDER.

